How SAP choose about what SUT to take.

Question

Hi gurus, I am trying to find out how SAP choose one Storage Unit Type or the other.
Let's  say I have the Storage for picking with a material stored in different bins one stored in PAL and the other bin contains the same material but stored in PLT.(twice quantity than a PAL)
I run out of stock and need to replenish the material for the picking storage , then I run LP21 to create a TO.
What will be the SUT for replineshment PAL or PLT?. WHy?, it its somewhere a setting or strategy indicating SAP to ask the material in one Storage type first than others?
Thanks for helping me out.
Al.
Edited by: agmogena on Jan 26, 2012 1:24 PM

Answer 1

Check in below path
SPRO>Logistics Execution>Warehouse Management>Strategies>Activate Storage Type Search
It should pick as per your configuration in above node.
Some help on this
Activate Storage Type Search
For putaway or pick operations, the Warehouse Management System (WMS) must know:
into which storage types materials can be placed
from which storage types materials can be removed
In the WMS, a storage type is determined as follows:
1. In the case of a putaway, you generally know where the material for the putaway is coming from. In the case of a pick, you generally know to where the material to be removed is to be transferred.
Information on the location from where the material is to be picked is either stored in the transfer requirement or determined by the system using the WM movement type.
2. The system must then know into which storage type the material should be placed, or from which storage type the material should be removed.  The table "Storage type search", which you are setting here, provides this information.  In this table, you store the preferred sequence of storage types to be searched for the material for putaways or picks.
If you have activated the storage unit check, this check also influences the storage type search.  In this case, the storage unit type from the transfer order is also checked against the allowed storage units per storage type.  The system finds this information via the table "Allowed storage unit types / storage type", which you are also setting here.
For further information on this subject, refer to the chapter Storage type search.
3. Furthermore, you can influence the storage type search using other indicators:
process indicator (for example, stock placement or removal)
storage type indicator from the material master
stock category indicator
special stock indicator
storage class
water pollution class (WPC)
reference movement type